It says it scales with intelligence. If I'm using a pyro glove I usually like to aim for 16att, which gives me 4 slots iirc? Anyway, that lets me use great combustion, great. You're probably referring to the number of slots they take up. Stronger spells sometimes take more than a single attunement slot to equip. The pyromancy flame lies to you in game. it is upgraded with souls by one of the 2. . But it doesn't. best stats for pyromancer dark souls.